Compare mortgage rates in the UK with this free online mortgage rate comparison calculator. Enter your mortgage amount, repayment term, and up to three interest rates to compare estimated monthly repayments and total payments over the term.
See how different rates could affect your borrowing costs in pounds (£) before reviewing mortgage offers from lenders.
Compare Mortgage Rates in the UK
Mortgage deals can differ in interest rate, fees, initial deal period, and repayment conditions. Comparing rates helps you understand how the interest rate alone affects the cost of borrowing.
Enter the same mortgage amount and repayment term for each option to make the comparison more meaningful.
See How Interest Rates Affect Monthly Repayments
A lower interest rate generally results in a lower monthly repayment when the mortgage amount and term remain the same. Even a small difference can affect your budget over time.
Use the results to compare your estimated monthly repayments, then try our mortgage payment calculator to explore your expected costs.
Compare Total Mortgage Repayments
Your monthly repayment is only part of the picture. The total shown by this calculator estimates all scheduled repayments over the full term, assuming each rate stays unchanged throughout.
Actual UK mortgage deals often have an initial fixed or discounted period before reverting to another rate, so the real total cost may differ. The calculation also excludes arrangement fees and other charges.
Choose a Mortgage Term That Fits Your Budget
A longer repayment term generally reduces monthly payments but can increase the total interest paid. A shorter term usually means higher monthly payments but less interest over the life of the mortgage.
Before deciding, review what you can comfortably afford and explore our mortgage affordability calculator to help assess your budget.
What to Check Before Choosing a Mortgage Deal
The lowest headline rate is not always the cheapest mortgage overall. Compare arrangement fees, early repayment charges, the length of the introductory deal, eligibility requirements, and the lender’s follow-on rate.
This calculator is useful for comparing interest-rate scenarios, but it does not replace a personalised mortgage illustration or advice from a qualified UK mortgage adviser.
Disclaimer: This calculator provides estimates for informational and educational purposes only, not financial, tax, legal, or professional advice. Results are based on the information entered and may differ from actual costs, payments, rates, fees, or eligibility. Verify details with the relevant lender, financial professional, or official source before making financial decisions.
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Disclaimer
MortgageRatesChecker provides educational mortgage calculators, loan tools, and financial guides designed to help you better understand home financing. Our content is researched, fact-checked, and regularly updated in accordance with our Editorial Policy, using trusted information from our Data Sources and transparent methodologies explained in How We Calculate. Learn more about our commitment to accuracy on Why Trust Us. This content is provided for informational purposes only and should not be considered financial, legal, tax, investment, or mortgage advice. Mortgage rates, lending requirements, loan programs, and regulations may change without notice. Before making any borrowing, refinancing, or home-buying decision, consult your Bank or Mortgage Lender, licensed financial advisor, tax professional, or attorney based on your individual circumstances. MortgageRatesChecker is an independent educational resource and is not a lender, mortgage broker, financial advisor, or government agency. Please review our Affiliate Disclosure, Advertiser Disclosure, Disclaimer, and Terms & Conditions for additional information.
